苯乙烯-4-乙烯基吡啶无规共聚物/SiO_2纳米杂化材料负载茂钛催化剂的制备及苯乙烯聚合  

Preparation of Poly(styrene-co-4-vinylpyridine)/Silica Nanoscale Hybrids Supported Cyclopentadienyltitanium Trichloride(CpTiCl_3) Catalyst and Styrene Polymerization

作　　者：朱宁[1] 唐涛[1] 崔冬梅[1] 冯之榴[1] 黄葆同[1] 

机构地区：[1]中国科学院长春应用化学研究所高分子物理与化学国家重点实验室中国科学院/中国石油化学总公司高分子化学联合开放实验室

出　　处：《高等学校化学学报》2001年第12期2117-2119,共3页Chemical Journal of Chinese Universities

基　　金：国家重点基础研究专项经费 ( G19990 6 480 1);中国科学院院长基金资助

摘　　要：To obtain a novel support with practical value for metallocene catalyst(\%η\%\|C\-5H\-5)TiCl\-3(CpTiCl\-3), poly(styrene\|co\|4\|vinylpyridine)/SiO\-2 nanoscale hybrid material(SrP/SiO\-2) was firstly produced as support. After pretreatment by methylaluminoxane(MAO), the hybrid materials reacted with CpTiCl\-3. The results from SAXS, SEM and TEM indicated the morphology and structure of organic/inorganic hybrid materials, and the size of inorganic particle in hybrid was nanoscale. The results from IR and XPS showed that there were two possible cationic active species in the hybrid\|supported catalyst, the polymerization results of styrene proved this possibility.To obtain a novel support with practical value for metallocene catalyst(\%η\%\|C\-5H\-5)TiCl\-3(CpTiCl\-3), poly(styrene\|co\|4\|vinylpyridine)/SiO\-2 nanoscale hybrid material(SrP/SiO\-2) was firstly produced as support. After pretreatment by methylaluminoxane(MAO), the hybrid materials reacted with CpTiCl\-3. The results from SAXS, SEM and TEM indicated the morphology and structure of organic/inorganic hybrid materials, and the size of inorganic particle in hybrid was nanoscale. The results from IR and XPS showed that there were two possible cationic active species in the hybrid\|supported catalyst, the polymerization results of styrene proved this possibility.

关 键 词：苯乙烯-4-乙烯基吡啶无规共聚物 载体 纳米杂化材料 SIO2 苯乙烯 负载型茂钛催化剂 聚合 

分 类 号：O632.13[理学—高分子化学] O643.36[理学—化学]